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HERA Report R4-97: New Zealand Weathering Steel Guide for Bridges – rev 3

HERA Report R4-97: New Zealand Weathering Steel Guide for Bridges – rev 3

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Description

Authors:

Raed Zaki,  Charles Clifton  &  Clark Hyland (2004, 2005).
Raed El Sarraf;  Willie L. Mandeno; Michail Karpenko (2020).
Edition: R4-92: 2004, 2005, 2020
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Abstract: In order to achieve a durable, high strength, structural steel (Weathering Steel) in the unpainted condition, some requirements for designing, fabrication, construction, site climate condition, inspection and maintenance need to be taken into consideration. Weathering steel or to use its technical title of “structural steel with improved atmospheric corrosion resistance”, is a high strength, low alloy, structural steel that in suitable environment can be use in the unpainted condition which results very low maintenance costs, economic bridge solution. The design for weathering steel bridges should be undertaken in accordance to the relevant parts of AS/NZS 5100.6. However, there are several requirements, mostly related to detailing and suitability of environment, which relate specifically to weathering steel, are outlined in this publication.